Cast: Implement priority packets in PacedSender

media/cast/net/cast_transport_sender_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/cast/net/cast_transport_sender_impl.h"
 
 #include "base/single_thread_task_runner.h"
 #include "media/cast/net/cast_transport_config.h"
 #include "media/cast/net/cast_transport_defines.h"
 #include "media/cast/net/udp_transport.h"
@@ skipping 71 matching lines @@
 void CastTransportSenderImpl::InitializeAudio(
     const CastTransportRtpConfig& config) {
   LOG_IF(WARNING, config.aes_key.empty() || config.aes_iv_mask.empty())
       << "Unsafe to send audio with encryption DISABLED.";
   if (!audio_encryptor_.Initialize(config.aes_key, config.aes_iv_mask)) {
     status_callback_.Run(TRANSPORT_AUDIO_UNINITIALIZED);
     return;
   }
   audio_sender_.reset(new RtpSender(clock_, transport_task_runner_, &pacer_));
   if (audio_sender_->Initialize(config)) {
+    // Audio packets have a higher priority.
     pacer_.RegisterAudioSsrc(config.ssrc);
+    pacer_.RegisterPrioritySsrc(config.ssrc);
     status_callback_.Run(TRANSPORT_AUDIO_INITIALIZED);
   } else {
     audio_sender_.reset();
     status_callback_.Run(TRANSPORT_AUDIO_UNINITIALIZED);
   }
 }
 
 void CastTransportSenderImpl::InitializeVideo(
     const CastTransportRtpConfig& config) {
   LOG_IF(WARNING, config.aes_key.empty() || config.aes_iv_mask.empty())
@@ skipping 95 matching lines @@
 void CastTransportSenderImpl::SendRawEvents() {
   DCHECK(event_subscriber_.get());
   DCHECK(!raw_events_callback_.is_null());
   std::vector<PacketEvent> packet_events;
   event_subscriber_->GetPacketEventsAndReset(&packet_events);
   raw_events_callback_.Run(packet_events);
 }
 
 }  // namespace cast
 }  // namespace media